Is bigger better?!

[McC]

Before anyone get excited, im speaking about inter-coolers!:p

As some of you might of seen, im half way through my rebuild.And Im trying find out what the best set up would be best for my needs. So I hope you guys can give me a hand. I asked on a general car forum and there was a bit of a bust up between two guys over there capabilities in building a car!

So, I going non-sequential and I will standard twins. The car will be uses to get to and from work and a wee bit of fun at the weekends:burnout

I read that I will be increasing the amount of lag by going non-sequential and if I get too big of an inter-cooler it will add to that lag. So Im wanting a set up that\'s not going to be unbearable, if you guys know what I mean.

So what do you think the best set up is, v-mount, fmic or smic? and what size of cooler?

Cheers McC

[L18M]

helps if we know your setup
tub, size exhaust etc...
from what i\'ve seen v-mount is the shortest pipework.
front mount will restrict the rad cooling ability a bit.

[McC]

ah sorry, wasn\'t clear on my set up.
4.5" exit 3" tubing for the exhaust
standard twins
apexi filters
not sure if I will be running the air pump or not yet.

I read that v-mount could suffer heat soak if you got stuck in traffic after a blast, is this true? or is it just the case of stick a couple of fans in to sort this?

[m1tch]

No, you can get a cheap and nasty ebay core that is MASSIVE and will have the same cooling performance than my small top mounted PACE cored ARC copy, its all about the core and the air flow, if you are running a V mount you would have a different bonnet anyhow.

[turbotoaster]

is the car gonna do track work, drag work or just used on the street?

[Jono FD3]

I\'ve got a V mount in mine, and to be honest it\'s one of the bigest coolers I have seen in a V-mount setup on the street! I\'m on stock twins & to be honest I haven\'t noticed any difference in boosting times (although I have done alot of work on the pipes from the tubs to cooler!) inlet temps are anything from 13 - 27c hottest I have seen on a summers day is 28c.
to be honest for general use I see no other option as this way doesn\'t obstruct any rad cooling eather!

jono

[McC]

@Jono what kind of work have you done? Have you just made them as short as possible? And have you changed your bonnet for the air to escape?

@m1tch, can you suggest a decent seller?

[turbotoaster]

alot of people use ebay greddy fmic kits and turn them into vmount kits, seems to fit quite well and comes with some pipework, cheap to, though most sellers are waiting for them to come back into stock as it looks like the usual ebay bits come on a big shipment and loads of companies grab a bundle of them.
 
Wait till they come back into stock for everyone(around 4weeks) and you should be able to get a good deal

[McC]

I not looking on spending huge amount of money, how ever did a quick google search and.....is it just me or are these really cheap, what\'s the catch? Would these work the as you suggesting turbotoaster?
http://www.nengun.com/trust-greddy/intercooler-kit-spec-ls

[turbotoaster]

thats not cheap mate, the ebay versions are identical to them but around £200-£220 and from companies in the uk
 
Thats what most people run as they are more than capable of holding the power, a few have been used up to 600bhp so you dont need any others
 
http://cgi.ebay.co.uk/MAZDA-RX7-FD3S-1992-95-FMIC-Front-Mount-Intercooler-Kit-/360262014482?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item53e14a1612
 
this is the one that you want.......now that price is daft because the rest of the ebay businesses are out of stock on this as they are all getting a delivery in 4-6weeks time.
 
If your patient they will all pop back up on ebay then and be around £200, thats the best advise i can give you.
 
You can get a universal cooler if you want, do you want fmic or vmic setup?

[turbotoaster]

if your really desperate and dont want to wait, see if these guys have them in stock
 
http://www.jperformance.co.uk/autobahn88-mazda-rx7-fd3s-front-mount-intercooler-fmic-kit-p-139.html
 
personally id wait though as you will be £90 better off waiting

[McC]

yeah did notice that and saw the price tag.

Yeah I was looking at the mishimoto universal ones on j-w-racing.

Reading the responses so far, v-mount seems the best set up for my needs.

hopefully im going to be getting the engine back in that time scale so iv got a wee bit of time.

[karting]

This is what i have, ive had no problem with heat soak. WGT/Radtec product

[McC]

Okay how easy is it to turn a fmic into a v-mount?

And can you change the orientation of the OEM radiator to complete the v-mount set up?

[turbotoaster]

yeh dead easy.

Just doing a bit of research for you as alot of people using that intercooler i showed you, use it as a vmount



thats one way of doing it, but i would have the pipes pointing at the engine instead i think to keep the pipework simpler

ill see what others i can find using that kit.

failing that if your prepared to get someone local to do a bit of modifying of a cooler then that opens up a bit range of ideas